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OpenProject vs Plane: catalog facts
OpenProject	Plane
Freemium Free open-source edition to self-host; hosted and paid plans start with a free trial.	Freemium Open-source self-hosted edition; paid cloud plans such as Business have a 14-day trial.
Web, Self-hosted	Android, iOS, Web, Self-hosted
Supports classic Gantt and agile boards in one tool Can be installed on-premises	Cloud, self-hosted and air-gapped deployment Wiki built into the same workspace
Running your own instance needs server administration Some features are reserved for paid plans	Some features are part of paid plans Heavy emphasis on AI features that not every team needs
Web application, Self-hosted, Hosted service	Downloadable app, Web application, Self-hosted, Hosted service
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.